| 结合损伤力学与有限元方法预估铆接结构疲劳寿命 |
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| 引用本文： | 张晓彪,张君男.结合损伤力学与有限元方法预估铆接结构疲劳寿命[J].航空计算技术,2014(3):66-68,72. |
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| 作者姓名： | 张晓彪 张君男 |
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| 作者单位： | 西北工业大学航空学院,陕西西安710072 |
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| 摘 要： | 利用飞机铆接试验件疲劳试验数据,结合损伤力学与有限元方法,通过MATLAB调用ABAQUS进行损伤演化方程参数的遗传优化反演。将反演得到的损伤演化方程用于飞机结构疲劳寿命预估中,对机翼蒙皮锪窝形式的铆接结构进行了寿命计算和分析,并与试验数据作对比,证明了方法的可行性。
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| 关 键 词： | 损伤力学 有限元方法 损伤演化 参数反演 铆接结构 |
Fatigue Life Prediction of Riveted Structure with Damage Mechanics ＆ Finite Element Method |
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| Institution: | ZHANG Xiao- biao, ZHANG Jun- nan ( School of Aeronautics, Northwestern Polytechnical University, Xi＇an 710068, China ) |
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| Abstract: | Based on the fatigue test data of aircraft riveted structure test pieces ,the inversion of parameters in a damage evolution equation is done withthe damage mechanics-finite element method by MATLAB and ABAQUS .Then this equation is applied to estimate the fatigue life of aircraft structures ,and do the calculation as well as the analysis of lifespan of the countersink riveted structure in wing skins .Numerical results showthat this method is effective . |
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| Keywords: | damage mechanics finite element method damage evolution inversion of parameters riveted structure |
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